U.S. federal trademark · Serial No. 77000986 · Reg. No. 3631864
Air treatment unit, namely, a collapsible portable room with negative air machine, made of fabric or spun plastic, which purifies the air as it leaves the enclosed space for use in hospitalizing tuberculosis patients and in isolating the space and preventing the spread of contaminants into or out of the space
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.